- 专利标题: Phase filter, imaging optical system, and imaging system
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申请号: US14780972申请日: 2013-10-16
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公开(公告)号: US09967441B2公开(公告)日: 2018-05-08
- 发明人: Takeshi Shimano , Kouichi Sakita , Mitsuhiko Oota
- 申请人: HITACHI MAXELL, LTD.
- 申请人地址: JP Kyoto
- 专利权人: MAXELL, LTD.
- 当前专利权人: MAXELL, LTD.
- 当前专利权人地址: JP Kyoto
- 代理机构: Miles & Stockbridge P.C.
- 优先权: JP2013-072388 20130329
- 国际申请: PCT/JP2013/078090 WO 20131016
- 国际公布: WO2014/155790 WO 20141002
- 主分类号: G02B3/00
- IPC分类号: G02B3/00 ; G02B27/00 ; G02B27/12 ; G02B3/08 ; G02B27/46 ; H04N5/225 ; H04N5/232 ; H04N5/222 ; G06K9/00 ; G08G1/16
摘要:
A phase filter 101 is configured to comprise an annular structure rotationally symmetrical about an optical axis, each annular zone including a cross-sectional shape of substantially parabola for uniformly extending incident rays of light on a focal plane and letting the rays overlap with each other.
公开/授权文献
- US20160057337A1 PHASE FILTER, IMAGING OPTICAL SYSTEM, AND IMAGING SYSTEM 公开/授权日:2016-02-25
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